Three-dimensional hydrodynamic simulation of an accretion flow in a close binary system

Statistics – Computation

Scientific paper

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Accretion Disks, Binary Stars, Computational Astrophysics, Hydrodynamic Equations, Three Dimensional Models, Euler Equations Of Motion, Spherical Coordinates, Stellar Mass Accretion

Scientific paper

Three-dimensional hydrodynamic simulations of Roche-lobe overflow are performed by solving the Euler equations. The gas is assumed to be inviscid and adiabatic except in the case of shocks. Gas filling the critical Roche lobe of a mass-losing component flow through the L1 point towards a compact object to form an accretion disk. It is found that the accretion disk is not axisymmetric but characterized by a pair of spiral shocks, as was the case in two-dimensional calculations.

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